After 3 days parked, pronounced ticking / tapping on startup ...
I have a new C63 with 450 miles. I'm still getting used to the noises it makes and trying to determine what's normal and what might not be normal.
I left the car parked over the weekend and upon startup today, I heard what sounded like a noisy valve (or ?) that was very pronounced. It would increase with engine rpm. I haven't heard this noise before, so... it had me a little concerned. I drove about a mile to the gas station, shut down, filled up, and restarted (yes the car was already empty, again
) On restart, the car was still just as noisy, so I figured it wasn't normal cold start "valve clatter" since it was still there after several minutes.However, I drove another 15 miles and the noise was gone. Stopped, started, drove another 20 miles and still sounds fine, no ticking/tapping.
Is this normal behavior for the 63 engine? I did a search and some have mentioned the purge valve or lifter noise and say it's normal. Just wanted to know what 63 owners have experienced on cold starts after the car's been left a while.
Thank you!
I used camera to recored the sound and I am keeping it for record.
Also My SA is aware of the issue so if something happens I can go back to the dealer.
Congratulation on New C63. It must be fun to drive
I will just note this as something that I could hear after the car is parked a while. This is the first time I've left it parked more than a day. Thanks for your post. I notice this also when starting the car on days that are at or below freezing temperatures. I would think unless the noise remains even after the car has been running for period of time, it's normal.
Here is how mine sounds via You Tube:
http://www.youtube.com/watch?v=3nlTDoIP2Oo
Last edited by Boris_C63; Jan 25, 2011 at 05:09 PM. Reason: Adding a link



